short cut arithmetic techniques(update)

1. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com Menu Bar View Auto /Automatically Scroll ( ) pdf Options View Go To ( Adobe Reader Foxit Reader ), Page number ; OK

2. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com+ Plus / add [ Sum / Total ] Minus / Subtract /Deduct [ Difference ] Times / Into/ dot /of /Multiply [Product / Multiplication ], /,Division , Divisible , Remaindera(dividend-) b(Divisor-) = c(Quotient-) Plus or Minus = Equal / Is Approximately Equal Is not Equal < Is Less then {5 < 10} Is not less then { 10} Is less than or equal to { x X }> Is greater then {5> 2} Is not greater then {5 20} Is greater than or equal to ( / ) % Percentage( 100 ) Infinity / Varies as / is Proportional Implies/or If and only if Pi 1,2,3...n[,,]Constant / x,y,z Variable /

3. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com2x x + x =a +bx+c Expression [a , bx,c Term]0 n0 =n , n0 =0 , 0/n =0 , n/o = (anything 0) = Undefined ()|x| [x] Absolute Value ( ) Negative Positive Square Root , =2, =3Cube Root , =3, =4n Root n x 1/n X y=Summation ,X n ,*( )+- Bracket Logarithmsa x ( n= )[ + , ] 10 n! n Factorial n n (n-1) (n-2)1 [ 5!=54321]nprPermutation [ n npr ,npr= n(n-1) (n-2) (n-3) ..(n-r+1) Ex:-6p3=654 ]ncrCombination / / ,ncr =( )

4. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.comA=*, , , + A , a,b,c,d Intersection /cap [ / ] [AB={x:xA xB}] Union/cup [ ]=> ( ) [AB={x:xA xB}] Element of / Belongs to / [Ex: bA] Is not an Element of/not Belongs to / Subset of [A / B / ]/ Superset Empty Set AB[B A , A / A ] A-B={x:xA xB}A Complementary set [UA=U-A={xU : xA }P(A) Power Set [A n P(A) 2n]NZQR N( / +n), Z( +n,0,+n)Q(0,+n, ),R ( ), ( ) Q=R-Q Straight line ( ) Ray ( ) Line Segment ( ) Similar to Almost Equal to Is Equivalent to / Congruent

5. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com Angle / Right Angle Measured Angle Perpendicular To Is Parallel to Therefore / Hence Since / Because / Triangle Rectangle/Square Circle (Unit) () 3 (Digits) / 3 Ex:- 318 3+1+8=12 , (Unit) (tens) 4 Ex:- 544 , 4 44 4 (Unit) () 5 3 2 (Unit) , (tens) (Hundredth) 8 Ex:- 77 264 , 264 8 , 77264 8 (Digits) / 9 Ex:- 288 2+8+8=18 , 9 , 288 9 (Unit) () 2, 5, 10 (oo ) , 4, 25, 100 (000) , 8, 125, 1000

6. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com0,1,2,3,4,5,6,7,8,9 1 100 0 11 2 9 (2,3,4,5,6,7,8,9) 20 1 21 87654321 8(Crores) 7(Nijut) 6(lacs) 5(Ajut) 4(Thousands) 3(Hundreds) 2(Tens) 1(Units)4321=41000+3100+210+1

7. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com{ -n.-5,-4,-3,-2,-1, 0, +1,+2,+3,+4,+..+n}2 {0, 2, 4, 6, 8,.2n}2 {1, 3, 5, 7, 9.(2n+1)} Even Even= Even , Odd Odd=Odd , Even Odd=EvenEven + Even=Even , Odd + Odd=Even , Even Odd=OddEven / Even= Even , Even /Odd=Odd , Odd/Even= OddOddOdd=Odd , OddEven=Odd , EvenEven=Even , EvenOdd=Even (2,4,6.) (3,5,7..) { n,n+1,n+2,n+3,.} ( even prime number) (Odd Prime number) 1 100 25 1060 1 200 46 1 500 95 1 1000 168 ( 2 ,3 3 , )

8. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com1 100 1-10 2,3,5,7 411-20 11,13,17,19 421-30 23,29 231-40 31,37 241-50 41,43,47 351-60 53,59 261-70 61,67 271-80 71,73,79 381-90 83,87 291-100 97 1 (4422322321) (1232232244) / Fraction ()=( )()( , x y ) , = Rules of fractions + = - = + = = + - = = - = = =

9. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com= a c = b2 > ( Ex:- , ) < ( Ex:- , )

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11. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com ,, , , , , , ,

12. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com- , - (0,1,2,3.n ), ()-16 , ( a/b - a b ) , - a/b - a b ) , ( ) , ( ) , , , , , e Ex:- , , , ,,I1, V5, X10, L50, C100, O500, M1000 Greek AlphabetAlpha Beta Gamma Delta Epsilon Zeta EtaTheta Iota Kappa Lambda Mu Nu Xi OmicronPi Rho Sigma Tau Upsilon Phi Kai PsiOmega , , 20 =5221 , Ex:- 35/5=7 , 35/7=5 5 7 35 35 7 5 ,

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14. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com2304 (Square Root ) 74 28 1) 2) , 3) 74 64 , = 8 :4) 8 74 64 5) 74 64 10 28 1028 ( ) 6) 8 82 = 16 ( ) 7) 16 1028 1028 8) 6 16 6 6 =996 7 ( 16 7 7 = 1169) 1028 9) 1028 996 32 862 = 172 32 10) , 86 11) 74 28 32 7396 86

16. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com BODMAS[{(Braket)}]of / Division() Multiplication () Addition (+) Subtraction(-) =x , x-a =b-x => x=Formula:-- = 1008 = 2222337=243271 = (4+1)(2+1)(1+1)=30Formula:-- x =ambncl =(m+1)(n+1)(l+1)210082504225221263633217

17. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.comnLet the Numbers =x and (x+1)According to the Question, (x+1)2 x2= n x = , = + = ( a , b , c d) .. = ( a , b , c d) .. + = ( a , b , c d) .. + / = .. .. .. = .. .. = .. =

18. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com- (a) 2 (b) 3 = 61 = 6 10 =(610) = .. = = -M A , M = M A [ A =]N B , N = N B = M + N = AM +BN =

19. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.comVaries as / is Proportional - ( , , , ) , = = , = a, b, c ,a:b =b:c a+b+c = S () a = S a:b = x:y = (xl): (yl) = xl : yl b:c =l:m = (ly): (my)= yl : my a:b:c = xl : yl : myFormula:-- = a + b + c = n ( )

20. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.comFormula:-Required Amount: = Required ratio Water = 3 =6Formula:-- = 7 + 3 = 1030 = 30 ( )( )= 21 30 = 30 ( )( )= 9 , = 3 : 7 x 3 : 7 21 : (9 + x) = 3 : 7 x = 407 : 5 10 = 30 0/ 0 3 = 7 : (3+2) = 7 :5 1 = 3 6

21. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com 100 (100) x % =N (90) P % (75% )Formula:-- Let the Number be = x X P% = N X 75% = 90What Percentage % is R(90) of N(120)?N X% =R 120 x% =90 : 100 100 , 100 , , 100 -25% = (100 + 25 ) = 125 125 = 100 ,, 100 ,, ,, ,, = = 80 = ( 00 80)% =20%

22. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.comFormula:- [ % = ] [ % = ]] (Increase ) + (Decrease ) , % % 25% , % 25% % , 25% Formula:-% Change = 100%Result + IncreaseResult Decrease =0 00 100% =100% [ ]

23. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.comFormula:-- 5% , 100 + 5 =105 100 = 105 ,, 1000 ,, ,, ,, = = 1050 5 = 1050 1000 = 50 1 ,, ,, ,, = 50/5 = 10 Formula:- = 10 Solution: = 100x = 100y = = 10000 xy20% = (100+20)x =120x10% = (100-10) = 90y = 120x 90y = 10800xy = 10800xy 10000xy = 800xy 10000xy = 800xy,, ,, 100 ,, ,, ,, = =8% Formula:-x First Value ( ) % y Second Value ( ) % , / (Increase) + / (Decrease) (Answer) + , (Answer) ,

24. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.comFormula:-- + C% = (+5) + (+5) +( ) ( )Formula:-- , F = S = 10 C% = (10) + (10) +( ) ( )Formula:-- , F = S = 5 , + C% = (+5) + (+5) +( ) ( ) F= + 25% S = 5% C% = (+25) + (5) +( ) ( ) C% = (-20) + (+20) +( ) ( )

25. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com C% = (+20) + (+20) +( ) ( ) C% = (+10) + (+20) +( ) ( )Formula:- Mix % =Formula:- - Rest (n) = 100x (f% + s% + t% )xFormula:- -pass = n x% (a/b) , = 100 = (100+25 ) 125 125 =100 ,, ,, 100 ,, ,, ,, ,, 80 = (100 80 ) = 20

26. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com , 100 =25 ,, 64 ,, ,, ,, ,, = , = (6416) 48 , 40 = 100 ,, 48 ,, ,, ,, ,, = 120 = (12048) 72 , = (72 16) 56 , , Formula:-- = (100 70 10)% = 20% = (100 80 10)% = 10% = (20 + 10 + 10)% = 40% = (100 40)% = 60% 60 , = 100 ,, ,, 360 ,, ,, ,, ,, ,, ,, =

27. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com = (60 40)% = 20% = (70 40)% = 30% = (40 + 30 + 20)% = 90% = (100 90)% = 10%[1 10% ] 100 = 10 ,, 200 ,, ,, ,, ,, ,, ,, = , , , , , () [ , ] X = Y 1 = (X Y) [ , ]Z =( )[ , ]

28. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com1 1 2 ,Formula:- M1 D1 = M2 D21) M2 =2) D2 =Solution :100 =(500 100) = 400 5 ,500 = (20 5) 15 1 ,, ,, ,, ,, ,, = (15 500) 400 ,, ,, ,, ,, ,, =( )00[ 500 , , ]Formula:--X m = 1 1 ,, ,, = Y 1 = X Y 1 = ( + ) = = 1 ,, 1 ,, ,, ,, = Formula:- T =

29. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.comFormula:- T = Formula:- T =Formula:- T =Formula:- T = [ ]SolutionX 20 = 1 X 1 = Y 1 = Z 1 = X , Y Z 1 = ( ) = 1 ,, 1 ,, ,, ,, = 8

30. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.comFormula:-- 1 = 1/8 ,, 6 ,, ,, ,, = 6/8 = (1 ) = X 1 = 20 ,, ,, ,, = (20 ) =20/4 = 5 Formula:-- X 1 = 1/ 20 5 ,, ,, =0 X 5 X , Y Z = (1 ) = X , Y Z 1/8 = 1 ,, 1 ,, ,, ,, = 8 ,, ,, ,, ,, = = 6 = X , Y Z + X 5 = 6 + 5 = 11

31. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com1 1 1 22 2Formula:--3 20 = 1 3 ,, ,, 1 ,, ,, =0 1 ,, ,, 1 ,, ,, =0 4 ,, ,, 1 ,, ,, =0 = [ , , ],5 20 = 1 1 ,, ,, 1 ,, ,, =0 10 ,, ,, 1 ,, ,, =00 =0 4 10 ,1 = ( +0) = = 1 1 ,, ,, ,, = 6 Formula : T2 =( ) ( )

32. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.comFormula:- T =( ) t U = Up , D = Down T =( ) ( ) 1= 77MinFormula:-- ( ) n = 1 ( ) = = = + = , U V [ U > V ] , (Relative Speed) = U +V , (Relative Speed) = U V / / X T T X ,, 1 ,, ,, ,, = =

33. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.compLt T =( Lp + Lt) ,, 1 ,, ,, ,, =( ) =( )Formula:-- ,1 (60 60) = 45 = (45 1000) 60 ,, ,, =0 0 750 60 , = + 750 = + 100 = 650 Formula:- =( ) 45 =( )[ T C nver S eed in km/hr to m/sec multiply speed by ] =650x T = , (Relative Speed) = , (Relative Speed) = T =( )= 11 Second [1 km/hr = meter/second ]

34. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.comFormula:- T = = 0 T =0 0( )= 9 Second [1 km/hr = meter/second ]Formula:- T = T =00 0 (Principal / Capital / Sum )[ Invested] / / ( Interest / Extra money for Interest) [ ] / [ Per-annum ] (Rate of Interest) [ , 100 1 ]/-/ (Amount/ Interest-principal/Increased Principal) = + P t = p t 1

35. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com r ,100 1 r 1 1 P 1 P t n I = I = npr [r = r% = r/100][ ] A = P + I A = P + nPr = P (1 + nr) P = [r = r% = r/100] P =[ , , ]

36. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com P rn C = p ( ) = (C) (P)= P ( ) P = ( ) = ( ) Solution-700 5 = 105 100 ,, 1 ,, ,, = Formula:- I = 105 = r = , X 5 - = 2X = - = 2X X = X X 5 = X 100 ,, 1 ,, ,, = = 20 = 20%

37. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.comFormula:- ( ) = = r 01 2Formula:--100 1 = (10 8 ) = 2 100 ,, ,,, ,, 5 ,, ,, ,, = (5 2 ) = 10 10 = 100 ,, 200 ,, ,, ,, =00 000Formula:- I = 200 = p =2000 Formula:--5% , 100 10 = ( 5 10) = 50 100 10 = ( 100 + 50 ) = 150 150 = 100 ,, 5000 ,, ,, ,, =00 0000Formula:- P =( ) P =( )

38. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com)Formula:--300 4 = 1200 1 500 5 = 2500 1 (1200 + 2500 ) = 3700 1 3700 1 148 100 ,, ,, 1 ,, ,, =0000 = x % = x/100 , I1 =0000 , I2 =0000, I1 + I2 =1480000+0000= 148 x = 4%Formula:-I =( ) r = r =00( 00 ) ( 00 )= 4%

39. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com + 5 = 500 + 5 = 460 [ ] 2 = 40 1 ~ ~ = = 203 ~ ~ = 203 = 60 = (46060) = 400 400 1 20 1 ~ 1 ~ ~ 20/400100 ~ 1 ~ ~2040000Formula:- C = p ( ) C = 600 ( )C = 726

40. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com (Cost Price ) CP :- / (Selling Price )SP:- (Profit) = (SP) - (CP)/ (Profit /Gain) P:-(loss) = (CP) - (SP)/ (Loss)L:- , - X % x % x C x % , = X % c = ( C + ) X % C = ( C ) C P , = Furmula: 1 (Profit %) =00( ) Profit % =00%

41. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.comFurmula: 1 (Loss %) =( ) loss % =000Furmula:(n) , (n+1) (n+2) , , ? (loss) =( , / -) loss % =00( 0)Formula:- =n , First Value=F%, Second Value=S% = n [ + , ] = 12 Formula:- = ( )( ) = 0000 0

42. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.comSolution = (150 + 20 ) =170 170 = 20 ,, 100 ,, ,, ,, =0 000Formula:- = + [ = ] = Cost = 150 +20 =170 % =0 000 Formula:- = Cost =00 0000 0Formula:- =( ) ( ) Cost =00 0000 0Solution: 100 , 100 P% , 100 = (100 + P ) ,, n ,, ,, ,, =( 00 )00L% , 100 = (100 - L ) ( 00 )00,, ,, ,, =( 00 )00( 00 )00[ P% , L% p% 5%(L%) ]

43. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.comFormula:--15% , 100 = (100 +15 ) =115 ,, 280 ,, ,, ,, = = 322 8% , (100 - 8 ) 92 = 100 ,, 322 ,, ,, ,, ,, = = 350 Formula : ( ) = 30 30 20% =24 (Profit) =( ) Profit = ( 0) Formula:- = R% ( ) Cost=0000

44. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.comSolution % 10% = (100 10) = 90 20% = (100 + 20 ) = 120 (120 90) = 30 30 100 ,, ,, 40 ,, ,, ,, ,, Formula:- = 40 10% 20% , 10% + 20% =40 15% = 40 1% =0 100% =0 00Formula:- = =000 0

45. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.comSolution: 3 % 20% = (100 20) = 80 40% = (100 + 40 ) = 140 40% 100 = 140 ,, 80 ,, ,, ,,0 000 = 112 10% , = (100 10 ) =90 = (112 -90) = 22 22 = 100 ,, 50 ,, ,, ,, =00 0Formula:10% , Sells1 = (100 10) = 90 20% = (100 20 ) = 80 , profit , 80 40% =32 ,Sells2 = + = 80 + 32 = 112 = [ Absolute Value Negative Positive ] Cost =00 0

46. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.comSolution:5 = 4 1 ,, ,, = ,4 = 5 1 ,, ,, = = - = =0[ ] =0 ,, ,, 100 ,, ,, ,, =Formula

47. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.comSolution:X = 1 1 ,, ,, = Y = 1 1 ,, ,, = = = =,, ,, 100 ,, ,, ,, = ( ) 00Formula =( )=( ) 00Solution: = (380+20) 400 400 =20 ,, 100 ,, ,, ,,Solution:10% = (100-10) 90 5% = (100+5) 105 = (105 90) 15 15 100 ,, 45 ,, ,, ,, ,, 300

48. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.comSolution:20% = (100+20) 120 10% = (100-10) 90 20% , 100 = 120 ,, 90 ,, ,, ,, =( )=108 % , = (100 ) = (100 ) 312 =100 ,, 31 ,, ,, ,, ,, = 200Solution:x % , = 00 ( 00 ) = 100 ,, n ,, ,, ,, =y % , = 00 100 = ( 00 ) ,, ,, ,, ,,=( )( ) = n ( )( )

49. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.comSolution:36 =12 100 ,, ,, ,, 20% , 100 = (100 + 20) 120 20% , = 120 20 ,, ,, ,,Solution:15% 1200 + 1200 15% (1200 15100) 1200+180 = 13805% 1380 1380 5% 1380 69 = 1311 Solution:5 = 2 100 ,, ,, = 4040% ,100 (100+40) 140 140 =40 35 ,, ,, ,, ,, = 10

50. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.comSolution:12 =20 1 ,, ,, ,, = 53 1 = = 2 53=1353 =13 ,, 100 ,, ,, 20 [ ]Solution:3 = 1 1 ,, ,, ,, = 2 = 1 1 ,, ,, ,, =2 1 = =1213=16[ ]13 =16 ,, 100 ,, ,, 50

51. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.comSolution:, 5 = x 1 ,, ,, ,, = 4 = x 1 ,, ,, ,, = 1 = = = = ,, 100 ,, ,, 25

52. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com1 Lac = 1051 Million = 106= 10 lac1 Crore =107=10 million1 Billion = 109(USA) =1012(Eu)1 Trillion = 1012(USA) = 1018(Eu)1 kilogram= 2.2 (lbs) pounds1 Seer = .93 kg1 mound = 40 seer = 37.2 kg1 quintal = 100 kg1 ton = 1000 kgS.I International Systems of Units 1960 CGS Centimeter . Gram .SecondM.K.S Meter . Kilogram . SecondF.P.S Foot .Pound .Second12 Inch = 1 foot , 3 foot = 1 Yard , 1760 Yard = 1 mileRelationshipDistance Area Volume1 Inch = 2.54 Centimeter 1 Inchs2= 6.45 cm21 liter = 1000 Cubic Centimeter1 Meter = 39.37 Inch 1 Hectare = 10000 meter21 Cubic meter = 1000 liters1 mile = 1.61 kilometer 1 Katha = 720 feet21 Cubic foot = 28.31 liters1 Nautical Mile = 1.853km 1 Acre = 4047 meter21 gallon = 3.78 liters(us) = 4.54 liters(uk)1 km2 = 247 Acres 1 Cubic Centimeter= 1 gram 1 m_t_r = 100 C_ntim_t_r = 39.37 In]hs = 3.28 `__t = 1.0936 Y[r^s = 0.00062 mil_s 1 kilogram = 1000 grams = 2.2 pounds = 35.27 Ounces = 0.157 Stone(uk) 1 meter2= 10.76 feet2=1550 Inchs2= 10000 centimeter2 1 Square kilometer = .3861 mile2= 100 hectares = 247 acres 1 mile2= 2.589 kilometers2= 259 hectare = 640 acres 1 Celsius = 33.8 Fahrenheit = 274.15 kelvin

54. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com F S F + S ( F S) F S = F S = 30 = 20 + 15 (F S ) (F S ) 1 12 12 = 3600 ,, ,, ,, ,, = 0N = n 0 1 0 ( )H M =( ) ( ) HM = [ () ] 0 / 0 Examples: ( ) ( )=( ) ( )= [ > 0 ] = 0 ( ) ( )= 0

55. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com:( ) ( ) ( x ) x ( ) ( ) () x :, A= q n, q = n =(, , W = q x n, q = ,n = x =w = n x, d = v t., v = t=, Q(t) = Q0 q t, Q0= q = t= Q(t) = t ( + )P = b r, b =r = = = S%P= = b S%

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short cut arithmetic techniques(update)

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